1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ef45cb4390bd1cb4215951d60eb41d34f52849e9f055dcd475f52dbde44e3e. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a73e5465-60d0-4bbe-876f-ef77ccd5ec5a.json and https://artists.proofprofile.net/proofs/artist/a73e5465-60d0-4bbe-876f-ef77ccd5ec5a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Quella pace gradita: The Recorder & Violin Cantatas
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9e117806be897b68225b6a716230d61b2579af85e5efc75b28e0eceb16c29f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ132007020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1131233d75e1f5e378ab151d5d3de503426686292c42a938163fbbe149913977. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES59G2141303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ff84713f21989c52543fcfeb00462d9086a9d8c8ba3d536f7d48d74ab20f8c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W11904022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebfdfa9c66d135466cd15c1732568a3bd68fd96ef873a4098e1a9a3b0d2fd80. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W11904021.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120e7670eee30584a724483ffc8754d1d967813d8db251856218f7bbcb9d0c05. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W11904025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8ad52a87ce50061a7a799d923a4f1712af68fff8e00a654c6890e7ee2b1bb4. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W11904026.
Il giardino di rose, R.503.19: Prima Parte: Introduzione
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a0673039a6be38a5d9a6ef9722b22707b9028a5741e7405f0fb886423948be. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400482.
Il giardino di rose, R.503.19: Seconda Parte: O del profondo (Arioso)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c08e1820de92177158eade49f2194119263c24c7f0f3b9cccb4274ab1607140. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400512.
Il giardino di rose, R.503.19: Prima Parte: Sorge il sol (Aria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8278c5470527130e7cf18d584f81410cd502a21625271e5c782f43bd676c9c8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400483.
Il giardino di rose, R.503.19: Seconda Parte: Fosca nube l'aria ingombri (Aria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35dd0186ec1f2d42dc5a5eaa926b97cf3fb95f3498a8576fd092fac04773c4f3. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400513.
Il giardino di rose, R.503.19: Prima Parte: Santa Religion (Recitativo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45bb83cd30149c3d4730baf8290b2cd57d4ab3879883252e09d4cb63a1b32ec. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400484.
Il giardino di rose, R.503.19: Prima Parte: Se nascon tra spine (Aria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4e5aa5e1e1528a9312a7a9fc1ffcb09302cb60814f23d0ac0637e8854e6a33. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400485.
Il giardino di rose, R.503.19: Seconda Parte: Volessero le stelle (Aria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab230bd37317c13af1ec79d151f4f3fd797ee477a94de749c0cdded5687a1d3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400515.
Il giardino di rose, R.503.19: Prima Parte: Ecco negli orti tuoi (Recitativo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc51e5f8ea6e5bfb4de50ae1c063bd44e0c4bdccf904eb43f567cb2887da7fe. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400486.
Il giardino di rose, R.503.19: Prima Parte: Che dolce simpatia (Aria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89fb70b0366811d067b7caed49d66f488575131948436501644a1e6b74e5870f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400487.
Il giardino di rose, R.503.19: Seconda Parte: Come sempre intorno gira (Duetto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d105984b9e2bf4a194d7d2e629240a2224facbb50e29f6c79e3f25ef5bc4175. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400517.
Il giardino di rose, R.503.19: Prima Parte: Se pur tardi si porta (Recitativo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3980c7770e7d3d0edafaa030d93b94163b5848d2811434d715d0542728b3cfcf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400488.
Il giardino di rose, R.503.19: Seconda Parte: Come liete e vezzose (Recitativo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2840ae28e5a677b96eefadd27a5165959759a08fdc579293c577cea41cac9c55. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400518.
Il giardino di rose, R.503.19: Prima Parte: Chi del cielo (Aria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5904170a19f80382abd0b2abc77ba116f180748f991cdbacfb400f6e488d0f30. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400489.
Il giardino di rose, R.503.19: Prima Parte: Non sempre vezzose (Aria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa556774f40543749747635af9cf694752c229c631bbb2655db15054f2da4eba. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400491.
Il giardino di rose, R.503.19: Seconda Parte: Vedi lo stuolo (Aria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d09fe813466071680c63a145bcc3c44c11f333fe91e406730021cf50c87133. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400521.
Il giardino di rose, R.503.19: Prima Parte: Al mio fiero sussurrar (Aria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad00a5c432d68e80f788d797e91f0c71e0916b8f2563ff8807a2175eeabbc74b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400493.
Il giardino di rose, R.503.19: Seconda Parte: Starò nel mio boschetto (Aria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d00ebd21ebb5d19a82ecb2154c318eb0e140df8487b00e96b5ef27e8e22763. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400523.
Il giardino di rose, R.503.19: Prima Parte: Io voglio pianger tanto (Aria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a10f5d1d2c4d5d751680ee5e2371eacc5c2fea865eb086c6083d90ed15009dc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400495.
Il giardino di rose, R.503.19: Seconda Parte: Più del vago pellicano (Aria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4598e71329306f1bfca3abd7ff6bb66813417db6285682a19cd421f1a280822b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400525.
Il giardino di rose, R.503.19: Seconda Parte: Deh, vieni o cara speme (Recitativo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4026de7a6fe7bb6754e791a65453fc05d2d6928bfa27494ae1a32162a2cf9530. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400526.
Il giardino di rose, R.503.19: Prima Parte: Quell'ardore ch'ho nel seno (Aria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24b58c39a88a4ad6115f517685a5bf57f9b13201754eeb58ab17cba473c87a0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400497.
Il giardino di rose, R.503.19: Seconda Parte: Mentr'io godo (Aria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b19d60e81bf7b6cd154efd87e7dfb01e2ce167ae4d82ea7fb670ee391e6b73f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400527.
Il giardino di rose, R.503.19: Seconda Parte: Or che dorme la speme (Recitativo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7c44152b27ca43e516f5e14ab1faf982a3b7502b4cd74b2bb8b52d63f5be86. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400528.
Il giardino di rose, R.503.19: Prima Parte: Il suo bel verde (Aria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb19f8e3de6ee2252184688c5a52c0226ab250eb85205b5ab0522d3ecedba941. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400499.
Il giardino di rose, R.503.19: Prima Parte: Come dunque non teme (Recitativo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91038cb839063d7be0abeec865fb5cbb3ee592f0974306938f3a44878e129295. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400502.
Il giardino di rose, R.503.19: Prima Parte: Perché care (Duetto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa340a8c9910f889f5f357b5ff58482e4ce0179f3c2fdf40cd810f398f0086ee9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400503.
Il giardino di rose, R.503.19: Prima Parte: Par che tutte d'averno (Recitativo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813ae9d61567e4773630c11bd8810605fb6a4f4d152bf9338870b0186bb1c19b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400509.
Il giardino di rose, R.503.19: Prima Parte: Corre il cervo (Duetto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106e5403638f9e99468e64b0a72cc84f0b1d61a9d7c6f111923cae913c6f88c4. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400510.
Il giardino di rose, R.503.19: Seconda Parte: Penitenza gradita (Recitativo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f84a19c3d72428073384f654254ce3c0cfdee1781870441dc51d9eabb5ddf6. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400520.
Il giardino di rose, R.503.19: Prima Parte: Così legate insieme (Recitativo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c9481ef1d3eb2fba6365ad3fdf34f1d66b3c1291df39974f8d424d35840b3d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE472400506.
Sognando Son Felice: Trio Sonatas by Domenico Scarlatti